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SG33CX vs SUN-33K-G03 9 of 18 identical Swap Change inverters

Sungrow SG33CX vs Deye SUN-33K-G03

Sungrow SG33CX
Sungrow
SG33CX
33 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Deye SUN-33K-G03
Deye
SUN-33K-G03
33 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SUN-33K-G03 leads on the differences that matter

The largest is max dc voltage: 100 V apart. 9 of 18 comparable parameters are identical, with 14 more left out because at least one datasheet does not publish them.

See all 9 differences
How alike are they
9 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

9 of 18 parameters
Parameter SG33CX SUN-33K-G03 Difference
Max DC voltage 1100 V 1000 V 100 V apart
Max input current per tracker 26.0 A 40.0 A 14.0 A more headroom
Weight 50.0 kg 44.5 kg 5.5 kg lighter
European efficiency 98.3 % 98.0 % 0.3 pp more efficient
Max AC current 55.2 A 52.8 A 2.4 A apart
Max operating temperature 60 °C 65 °C 5 °C more heat tolerant
Ingress protection IP66 IP65 IP66 vs IP65
MPPT voltage range 200-1000 V 200-850 V 200-1000 V vs 200-850 V
Dimensions 595x702x310 mm 537x648x304 mm 595x702x310 mm vs 537x648x304 mm
02

Full specification

Parameter SG33CX SUN-33K-G03 Difference
AC output
Rated AC power 33.00 kW 33.00 kW Same
Max AC power 36.30 kW 36.30 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 55.2 A 52.8 A 2.4 A apart
PV input
Max PV power - 42.90 kW Not published by Sungrow
DC/AC ratio - 1.30 Not published by Sungrow
Max DC voltage 1100 V 1000 V 100 V apart
MPPT voltage range 200-1000 V 200-850 V 200-1000 V vs 200-850 V
Start voltage 250 V 250 V Same
MPP trackers - 4 Not published by Sungrow
Strings per tracker 2 - Not published by Deye
Max input current per tracker 26.0 A 40.0 A +14.0 A for SUN-33K-G03
Efficiency
European efficiency 98.3 % 98.0 % +0.3 pp for SG33CX
Max efficiency 98.6 % 98.7 % Effectively the same
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input - - Neither datasheet publishes this
Battery voltage - - Neither datasheet publishes this
Max charge current - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 50.0 kg 44.5 kg -5.5 kg for SUN-33K-G03
Weight per kW 1.5 kg/kW 1.3 kg/kW Effectively the same
Dimensions 595x702x310 mm 537x648x304 mm 595x702x310 mm vs 537x648x304 mm
Ingress protection IP66 IP65 IP66 vs IP65
Cooling forced-air forced-air Same
Noise - 45 dB Not published by Sungrow
Max operating temperature 60 °C 65 °C +5 °C for SUN-33K-G03
Connectivity and safety
Wi-Fi - Yes Not published by Sungrow
Ethernet - Yes Not published by Sungrow
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
03

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04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.